{"id":"CVE-2026-106134","kind":"vulnerability","aliases":["CVE-2026-106134"],"related":[],"title":"KendoReact Menu: unsafe item URL lets attacker run JavaScript in app","description":"Cross-Site Scripting (XSS) in the Menu component (@progress/kendo-react-layout) in Progress Software KendoReact versions 1.3.0 through 16.1.0 allows a low-privileged attacker who can influence the Menu item data to execute arbitrary JavaScript in the origin of the application via an unsafe URL in a Menu item, which runs when a user selects the item.","summary":"The Menu component in the @progress/kendo-react-layout package does not sanitize URLs in menu items, so a crafted item URL runs JavaScript in the application's origin when a user selects it. An attacker who can influence menu item data can read session data or act as the signed-in user.","severity":"medium","cvss":5.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["javascript","kendo-react","package","react"],"not_affected_if":["component-not-used","static-menu-items"],"how_to_check":"- Check the installed version: `npm ls @progress/kendo-react-layout`\n- Look for Menu components whose item data comes from user input or external sources.","fix":"- `@progress/kendo-react-layout` versions 1.3.0 through 16.1.0 are affected; the sources do not state a fixed version.","status":"open","published_at":"2026-11-06T17:17:11+00:00","first_seen_at":"2026-11-06T17:43:12+00:00","triaged_at":"2026-11-06T17:45:29+00:00","updated_at":"2026-11-06T17:45:29+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-06T17:45:29Z","model":"claude-haiku-5-5","output":{"fix":"- `@progress/kendo-react-layout` versions 1.3.0 through 16.1.0 are affected; the sources do not state a fixed version.","reach":"internet","title":"KendoReact Menu: unsafe item URL lets attacker run JavaScript in app","impact":"medium","summary":"The Menu component in the @progress/kendo-react-layout package does not sanitize URLs in menu items, so a crafted item URL runs JavaScript in the application's origin when a user selects it. An attacker who can influence menu item data can read session data or act as the signed-in user.","audience":"developers","category":"package","nicknames":[],"who_cares":["kendo-react","react","javascript"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"JavaScript runs in the application origin, exposing session data","analyst_note":"Confirm the fixed version in the Progress KendoReact advisory; the NVD entry gives only the affected range.","how_to_check":"- Check the installed version: `npm ls @progress/kendo-react-layout`\n- Look for Menu components whose item data comes from user input or external sources.","plain_action":"","needs_analyst":true,"not_affected_if":["component-not-used","static-menu-items"],"who_is_affected":"Applications that use the KendoReact Menu component from @progress/kendo-react-layout and build its items from data an attacker could influence. Applications that hard-code their menu items or do not use this component can skip it. unknown whether the sources name other conditions.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000705,"input_tokens":4265,"output_tokens":558,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-106134':14A,17A '-2026':13A,16A '1.3.0':90C '16.1.0':92C 'act':68B 'allow':93C 'app':11A 'applic':47B,115C 'arbitrari':108C 'attack':7A,56B,98C 'compon':26B,83C 'craft':40B 'cross':76C 'cross-sit':75C 'cve':12A,15A 'data':62B,66B,105C 'execut':107C 'influenc':59B,101C 'item':4A,37B,41B,61B,104C,123C,131C 'javascript':9A,18B,44B,109C 'kendo':20B 'kendo-react':19B 'kendoreact':1A,88C 'let':6A 'low':96C 'low-privileg':95C 'menu':2A,25B,36B,60B,82C,103C,122C 'origin':49B,112C 'packag':22B,30B 'privileg':97C 'progress':86C 'progress/kendo-react-layout':29B,84C 'react':21B,23B 'read':64B 'run':8A,43B,125C 'sanit':33B 'script':78C 'select':53B,129C 'session':65B 'sign':72B 'signed-in':71B 'site':77C 'softwar':87C 'unsaf':3A,118C 'url':5A,34B,42B,119C 'user':52B,74B,128C 'version':89C 'via':116C 'xss':79C","nicknames":[],"mitigations":[],"who_affected":"Applications that use the KendoReact Menu component from @progress/kendo-react-layout and build its items from data an attacker could influence. Applications that hard-code their menu items or do not use this component can skip it. unknown whether the sources name other conditions.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"developers","plain_action":null,"pkeys":[],"ptokens":[],"labels":["javascript","kendoreact","medium","package","react"],"campaign_type":null,"search_a":"'-106134':14A,17A '-2026':13A,16A 'app':11A 'attack':7A 'cve':12A,15A 'item':4A 'javascript':9A 'kendoreact':1A 'let':6A 'menu':2A 'run':8A 'unsaf':3A 'url':5A","search_b":"'act':68B 'applic':47B 'attack':56B 'compon':26B 'craft':40B 'data':62B,66B 'influenc':59B 'item':37B,41B,61B 'javascript':18B,44B 'kendo':20B 'kendo-react':19B 'menu':25B,36B,60B 'origin':49B 'packag':22B,30B 'progress/kendo-react-layout':29B 'react':21B,23B 'read':64B 'run':43B 'sanit':33B 'select':53B 'session':65B 'sign':72B 'signed-in':71B 'url':34B,42B 'user':52B,74B","search_c":"'1.3.0':90C '16.1.0':92C 'allow':93C 'applic':115C 'arbitrari':108C 'attack':98C 'compon':83C 'cross':76C 'cross-sit':75C 'data':105C 'execut':107C 'influenc':101C 'item':104C,123C,131C 'javascript':109C 'kendoreact':88C 'low':96C 'low-privileg':95C 'menu':82C,103C,122C 'origin':112C 'privileg':97C 'progress':86C 'progress/kendo-react-layout':84C 'run':125C 'script':78C 'select':129C 'site':77C 'softwar':87C 'unsaf':118C 'url':119C 'user':128C 'version':89C 'via':116C 'xss':79C","first_public_at":"2026-11-06T17:17:11+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cvss_by":"security@progress.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-106134","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106134","severity":null,"published_at":"2026-11-06T17:17:11+00:00","modified_at":"2026-11-06T17:17:11+00:00","first_seen_at":"2026-11-06T17:43:12+00:00","fetched_at":"2026-11-06T17:43:12+00:00","note":null}],"documents":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}